Daniel Medwed, a law pro­fessor at North­eastern Uni­ver­sity, said that dual pros­e­cu­tions are rel­a­tively rare and typ­i­cally involve high-​​profile cases that spark public outcry, such as in the case of the Wash­ington, D.C., snipers.

If Tsar­naev is con­victed on the fed­eral charges and sen­tenced to death or life in prison, a state case would be largely sym­bolic, Medwed said. But even then, a second pros­e­cu­tion can be seen as helping “avenge an injus­tice,” he said.

Pros­e­cu­tors cer­tainly have good grounds for pro­ceeding,” he said.

Read the article at The Boston Globe →